It was agreed that while such regimes were sometimes identified by reference to special secondary rules contained therein, the distinction between primary and secondary rules was often difficult to apply and might not be required for the study.
Se convino en que, si bien tales regímenes se identificaban a veces por remisión a las normas secundarias especiales correspondientes, la distinción entre normas primarias y normas secundarias era a menudo difícil de aplicar y quizás no fuera necesaria para el estudio.